Draft-rigging for railway-cars.



1. r. oco'NNon.-l Y DRAFT RIGGING FIR RAILWAY CARS. APPLICATION FILED IULY 3l, 19I6.

Patented Feb. '11, 1919.

A IN V EN TOR. W I TNESSBS'# Jan/F0 /zfwr www ATTORNEY..

JOHN l". CONNOR, F CHICAGO, ELLLQ'GIS, SSIGNOR TO WLLIAM H. EINER, 0F

- CRAZY, NEW YORK.

:DRAFT-RIGGING FOR RAILWAY-CARS.

Specication of Letters Patent.

raient-ea rea. ii, isis.

.pplioation Jile July 31, i916. Serial No. 112,244.

To all 'whom t may concern:

Be it known that l, JOHN F. OCoNNon, a citizen of the United' Sta-tes, residing at Chicago, in the county of Cook and State ot Illinois, have invented certain new and useful improvement in Draft-Rigging -for Railwayars, of which the following is a full, clear. concise, and exact description, reference being had to the l'accompanyinfzrj drawings, forming a part of this speciicaf? the description ot' my invention herein folemhodying my invention. Fig. 2 is a cross lowing.

ln the drawings forming a part of this specification, Figure l is a horizontal section, partly in top plan, of a draft rigging section taken on line o' Fig. l. Fig. 3 is an enlarged detail showing in vertical longitudinal section the elements of my re training holt coupling feature. Fig. 4 is a perspective View of one portion of a cou pling member, and Fig. 5 is a perspective view oi the other portion of the coupling member.

Referring' to the drawings, the numeral (i indicates draft members, or that part of the car underrame to which the draft rig- ,ging is applied, 7--7 the front stop members and 8 8 rear stop members, all oi usual construction. The draft gear, indicated at 9, is mounted between the draft members and is supported in its position by the tie plate 10, which is snit-ably secured to the draft memheraas for instance by the bolts ll-11.

The draft gear is of the double-ended type and comprises a hollow shel preferably of cylindrical form, 12, open at either end, as clearly shown in Fig. 1 of the drawings, and provided intermediate its ends with a transverse diaphragm 13. The said diaphragm is centrally provided with a perforation lei, within which the retaining bolt coupling member 15, hereinafter more particularly described, is mounted. A chamber 16 is thus formed within the shell on either side of said diaphragm, and each of said chambers contains -a set of friction and' spring elements, constituting a single com pression resisting unit.

The elements in each of said chamhers are substantially the same and it is only neces sary to describe one of them. The said elements consist of the friction shoes lil- 18, preferably three in number, the said friction shoes being provided with a spreading meub ber, or wedgeA 19, the said wedge bein adaptedto-he engaged bythe adjacent io lower 20 and seated between the said friction elements and the diaphragm of the shell are spring members, preferably comprising an outer spring- 21 andvv an inner springn 22. At its inner end the outer spring 'is seated against the said diaphragm, and both osaid springs at their outer ends are seated against the follower member 23, which exi-- gages the outer ends of the friction shoes. The inner ends of the s ring coils are seated against the retaining olt. coupling meinloer l5. A retaining bolt 25 is mounted in each chamber, being provided at its outer end with a nut 26 countersunli in the wedge,

as at 27, and at its inner end'with a head 28. The retaining holt coupling member 15 is formed in two sections, one of said sections being representedin Fig. 4c of the drawings and the other in Fig. 5. The said sections are adapted to receive cach a head of a retaining bolt and are provided with means, hereinafter more particularly described, to prevent the rotation of the loolt heads therein.V One of the members, as for instance that indicated in Fig. si, is provided with a shoulder 29, adapted to engage against the diaphragm 13.` lt is also -v provided with a projecting portion 30 which extends through the opening; l` in the said diaphragm. lThe said projection is provided with an internal face of substantially the same contour as that of the holt head, in order to prevent the rotation of the retain ing bolt head therein. This portion of the retaining bolt coupling member is provided with a longitudinal perforation Sl'for the 4passage of the shank of the bolt. The other ortion of the retaining bolt coupling inemu er, as for instance that illustrated in Fig. 5,

is provided with a bod@r portion 32, having the longitudinal perforation 33 for the pas 'sage of the shank of a retaining bolt, and is adapted, through the shoulder 3e pro vided thereon, to interlock with the projecting portion of the opposed part of the retaming bolt coupling member. The projecting member() is of sufficient length -to permit the reception therein of the head of the bolt passing through the opposed i. portion of the couplinginember so that the opposed heads of both retaining bolts are, upon the 4assembling of the parts of the retaining bolt coupling member, within the groove which is shownin the' projecting v portion 30 illustrated in Fig. 4.- of the drawthe retaining bolt coupling member, shown lili in F ig. 5 of the drawings, laterally into engagement with Vthe portion thereof illustrated in Fig. 4 to their central position in reference to the shell. l v

It will be understood that the draft rigging is provided with a draw bar 36, the rear portion thereof being shown'in Fig. 1 of the drawing, to which a yoke 37 is connected to eect a connection between the. draft gear. and the draw bar in a manner which is well understood.

l In assembling the parts of the friction mechanism within the shellone section of the retaining bolt cou-pling member, for instance that illustrated in Fig. 5, is mounted upon one of lthe retaining bolts, as for instance the front retaining bolt, shown in Fig.:

1 of the drawings. Likewise, the other portion of theA retaining bolt coupling member, as for instance that illustrated in Fig. 4, is mounted upon the other connecting bolt, as for inst-ance the rear connecting bolt shown in Fig. 1 of the drawings. A retaining bolt is then inserted in each chamber of the cylinder, the portion of the coupling member 15, illustrated in Fig. 4: vof the drawings, being passed through the opening 14 in the diaphragm 13, and the other portion ofthe rctaining'bolt coupling member is then brought into engagement'at one side of the center and slipped laterallyT into position, until both connecting bolts are in their position along the axis of the shell and thereupon the springs and friction elements are inserted,

the nits upon the retaining bolts placed in position, and theparts of the draftV gea-r are thus wholly assembled.

Heretofore, in double ended friction gears, where'the same are provided with a single connecting bolt extending from one set of friction elements at one end, to another set of friction elements at the other end, or

where'the elements in one end of a draft gear casing are of different compression resisting capacity than'those 1n the other end ofthe casing, great difficulties have been experienced in properly limiting the outward movement of the'frictio'n parts upon the release, compared to the parts having a lower l coeilicient of friction inthe other `end of the shell, and the parts because of this equalit of action, when they finally come to rest, wi l be found extended beyond the normalposi-= tion which they are designed to take in the particular ear, while the parts that releasey tardily wil be less ext/ende than in the normal position for which they were designed in the gear.

My lnvention, by reason of the means provided for' holding the retaining bolt through the medium yof the-coupling member 15,'overcomes this difficulty. T hat is, upon release of the compression resisting parts, the shell will bein its 'central position in reference't'o .the otherparts of the draft riggingwith which it is associated. It will 'be observed that upon the assemblingof the parts, the inner coilsl being seated at their outer ends against the friction elements, and at their inner ends against the retaining bolt coupling member, will hold the parts of said coupling member in their fixed position and will prevent any vaccidental displacement thereof.

I claim: l l y 1. In a frictional shock absorbing mechanism, the cmbination with a double 'ended friction shell, of friction elements coperablc with said shell. at each end thereof, spring `means associated with each set of friction element-s, and means, including a longitudmally extending bolt, associated with cach set of frlction elements to limit the outward movement thereof with respect to thefric-H tion shell, said means at one cnd of the shell' acting independently of the means at thc opposite end of the shell. 4

2. In a shock absorbing mechanism, the combination with a shell, of separate compression-resisting members at either end of' the shell, a retaining bolt for each set of 'compression-resisting members, and a coupling member for connecting said bolts.

3. In a shock absorbing mechanism, the

lll

ceases oi' compression-resisting elements in each of said chambers, a retaining bolt for each of said sets, and a coupling member for said bolts, said coupling member being secured to the shell.

5. In a shock absorbing mechanism, a shell, a diaphragm forming chambers in said shell, a set of compression resisting elements in each of said chambers, a retaining bolt for eachof said sets, and a'coupling member holding said retaining bolts end to end, the said coupling member being secured to said diaphragm.

6. In a'shoc'k absorbing mechanism, a

shell, a member' forming chambers in said shell, a set of compression resisting elements I in each of said chambers, a retaining bolt for each of said sets and a 'coupling mem-ber for each of said retaining bolts, the said coupling members having interlocking portions.

7. In a shock absorbing mechanism, a

shell, a member formingA chambers in said ber for the said retaining bolt, the said coupling member extending through said diaphragm and being secured thereto. 9. In ,a shock absorbing mechanism, a shell, a pluralityof sets of compression resisting members withinv said shell, a retain' ing bolt for each of said sets and a'coupliiig member connecting said retaining bolts together, `lsaid coupling member comprising a .plurality of parts, the said parts having interengaging iianges to connect them together.

10. In a shock absorbing mechanism, a shell, a diaphragm intermediate the ends of said shell, friction elements and springs on either side of said diaphragnfi,y a con necting bolt associated with each -set of `:triction elements, coupling'means for securing said bolts to the shell, said coupling means interlocking with the vsaid diaphragm.

11. In a shock absorbing mechanism, ai.:

shell, a set of friction elements and springs in either end of said shell,a diaphragm in said shell separating said sets, and a connecting bolt' for each of saidsets secured to said'diaphragm t0 limit the movement of the friction elements of eachset away from the diaphragm.

12. In a shock-absorbing mechanism, a shell, a chamber in either end of said sheli, each chamber being provided at its inner portion with spring members and at its outer portion with friction elements, pressedr against Vby said spring members, ,and a coiineet-ing bolt foreach set of' friction eleL ments, the said retaining bolts being at their inner ends secured tothe shell.

13. In a shock absorbing mechanism', a shell, a chamber iii either end thereof, a

diaphragm separating said chamber, springs mounted on either side of said diaphragm,"

a' set of'frictioii elements in each of said 'chambers and associated with the springs therein, a retaining bolt for' each set of friction elements, and a coupling member for said retaining. bolt, the said coupling memv ber being secured to the said diaphragm.

14. In a shock absorbing mechanism, a shell, chambers in either eiid of said shell, a diaphragm separating said chambers, :triction elements in eaeli of said chambers, a retaining bolt for each set of friction elements, an interlocking coupling member securing the inner ends of said bolts in the diaphragm. and a spring mounted between each set of friction elements and the coupling member to hold the coupling member iii locked position. v

In witness that I claim the oregoing'I have hereunto subscribed my name this 28th day of July, 1916.

. JOHN F. OCONNOR. Witnesses:

ELIZABETH' M. Berri', LUoiLLE HIGGINS. 

